FR2838910A1 - METHOD FOR DETERMINING IF, IN A BASE STATION, ONE OF SEVERAL DATA SERVICES PROVIDED TO A MOBILE STATION CAN BE RECONNECTED IN A SLEEPING STATE - Google Patents
METHOD FOR DETERMINING IF, IN A BASE STATION, ONE OF SEVERAL DATA SERVICES PROVIDED TO A MOBILE STATION CAN BE RECONNECTED IN A SLEEPING STATE Download PDFInfo
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- FR2838910A1 FR2838910A1 FR0304670A FR0304670A FR2838910A1 FR 2838910 A1 FR2838910 A1 FR 2838910A1 FR 0304670 A FR0304670 A FR 0304670A FR 0304670 A FR0304670 A FR 0304670A FR 2838910 A1 FR2838910 A1 FR 2838910A1
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- service
- station
- paging
- response message
- message
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/19—Connection re-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/02—Arrangements for increasing efficiency of notification or paging channel
Abstract
L'invention concerne un procédé pour déterminer si un service de données en paquets sans fil peut être activé dans un état dormant (10). Pour activer l'un de plusieurs services de données en paquets dans l'état dormant, une station de base BS transmet à une station mobile MS un radiomessage (101) contenant un identificateur identifiant le service devant être activé. Si une instance pour le service n'est pas disponible, la station MS transmet à la station BS un message de réponse (102) indiquant que le service ne peut pas être reconnecté. La station BS s'arrête alors immédiatement, sauvegardant ainsi les ressources radio et améliorant les performances du système. Domaine d'application : télécommunications du type AMRC, etc.The invention relates to a method for determining whether a wireless packet data service can be activated in a dormant state (10). To activate one of several packet data services in the dormant state, a base station BS transmits to a mobile station MS a paging message (101) containing an identifier identifying the service to be activated. If an instance for the service is not available, the station MS transmits to the station BS a response message (102) indicating that the service cannot be reconnected. The BS station then stops immediately, saving radio resources and improving system performance. Field of application: CDMA type telecommunications, etc.
Description
L' invention concerne de facon generale un systeme de telecommunicationsThe invention relates generally to a telecommunications system.
sans fil, et en particulier un procede pour determiner si un service de donnees en paquets sans fil peut etre active dans un etat dormant sans qu'un canal de trafic ne soit connecte entre une station de base (BS) wireless, and in particular a method for determining whether a wireless packet data service can be activated in a dormant state without a traffic channel being connected between a base station (BS)
et une station mobile (MS).and a mobile station (MS).
Des systemes de telecommunications sans fil tels que le systeme a acces multiple par repartition par code (AMRC) 2000 fournissent une communication du service mobile de la troisieme generation. Ces systemes de communications mobiles de troisieme generation supportent un service de donnees en paquets a haute vitesse incluant des images cinematographiques, ainsi qu'un service vocal, en comparai son avec les systemes class iques de communications Wireless telecommunications systems such as the Code Distribution Multiple Access System (CDMA) 2000 provide third generation mobile service communication. These third generation mobile communications systems support a high speed packet data service including cinematographic images, as well as a voice service, compared to sound with conventional communications systems.
mobiles de deuxieme generation.second generation mobiles.
Si aucun trafic n'est echange entre une station de base BS et une station mobile MS pendant un temps predetermine apres que des canaux radio ont ete connectes pour un service de donnees en paquets, elles echangent des messages de signalisation, puis passent dans un etat dormant. On entend par etat dormant un etat dans lequel aucun canal de trafic n'est connecte entre les stations BS et MS, tous les canaux de la Couche l et de la Couche 2 vent liberes et les informations concernant les canaux des Couches l et 2 vent supprimees. Cependant, la station MS conserve une instance de service pour le service de donnees en paquets dans l'etat dormant. Une instance de service est definie comme etant un processus pour autoriser la pour-quite du service de donnees en paquets et pour gerer une information de connexion associee, en particulier une If no traffic is exchanged between a base station BS and a mobile station MS for a predetermined time after radio channels have been connected for a packet data service, they exchange signaling messages, then go into a state sleeping. By dormant state is meant a state in which no traffic channel is connected between the BS and MS stations, all the channels of Layer 1 and of Layer 2 free wind and the information concerning the channels of Layers l and 2 wind deleted. However, the station MS maintains a service instance for the packet data service in the dormant state. A service instance is defined as being a process for authorizing the packet data service and for managing associated connection information, in particular a
information de connexion de protocole point-a-point (PPP). point-to-point protocol (PPP) connection information.
L' instance de service est identifiee par un identificateur de reference de service (SR ID pour "Service Reference IDentifier"). Dans l'etat dormant, seule l' information de connexion PPP est geree. Lors de la generation de donnees d'emission dans l'etat dormant, les stations BS et MS passent dans un etat de reconnexion et executent la meme operation que celle effectuee pour l'etablissement d'un appel initial, a l 'exclusion de l'etablissement de la connexion PPP. Si le service de donnees en paquets peut etre active dans ltetat de reconnexion, les stations BS et MS passent dans un etat The service instance is identified by a service reference identifier (SR ID for "Service Reference IDentifier"). In the dormant state, only the PPP connection information is managed. During the generation of transmission data in the dormant state, the BS and MS stations go into a reconnection state and execute the same operation as that carried out for the establishment of an initial call, excluding the establishment of the PPP connection. If the packet data service can be activated in the reconnection state, the BS and MS stations go into a state
actif et echangent des paquets.active and exchange packets.
Pour activer un service particulier dans l'etat dormant, la station BS avise la station MS uniquement diune option de service indiquant le type du service. I1 se peut que deux ou plus de deux services ayant la meme option de service soient en cours entre les stations BS et MS. Par exemple, avec la station MS connectee a un ordinateur portable, la station MS et ltordinateur portable realisent un service de video a la demande (VOD pour "Video On Demand") et un service de protocole de transfert de fichier (FTP pour "File Transfer Protocol"), respectivement, par la meme connexion sans fil. Dans ce cas, la station MS fait fonctionner deux instances de services pour les services VOD et FTP. Bien que les instances de services aient le meme numero d'option de service, par exemple 33, indiquant le service de donnees en paquets a haute vitesse, elles To activate a particular service in the dormant state, the station BS notifies the station MS only of a service option indicating the type of service. Two or more than two services with the same service option may be in progress between the BS and MS stations. For example, with the MS station connected to a laptop, the MS station and the laptop perform a video on demand service (VOD for "Video On Demand") and a file transfer protocol service (FTP for "File Transfer Protocol "), respectively, by the same wireless connection. In this case, the MS station operates two service instances for the VOD and FTP services. Although service instances have the same service option number, for example 33, indicating high speed packet data service, they
utilisent des connexions PPP separees. use separate PPP connections.
Apres l'etablissement de canaux de trafic et le 2s passage a l'etat actif, la station MS identifie le service devant etre active par un identificateur SR ID recu depuis la station BS, et determine si une instance de service correspondante est disponible. Si la station MS est deconnectee de l'ordinateur portable dans l'etat dormant, le service FTP n'est pas disponible. Lorsque la station BS demande l' activation du service FTP par l'identificateur SR ID identifiant le service FTP, la station MS libere les canaux de trafic affectes, considerant que l' instance de After the establishment of traffic channels and the second transition to the active state, the station MS identifies the service to be activated by an identifier SR ID received from the station BS, and determines whether a corresponding service instance is available. If the MS station is disconnected from the laptop in the sleeping state, the FTP service is not available. When the station BS requests the activation of the FTP service by the identifier SR ID identifying the FTP service, the station MS releases the affected traffic channels, considering that the instance of
service FTP n'est pas disponible.FTP service is not available.
Etant donne que la station BS ne fait pas connaltre a la station MS l'identificateur SR ID identifiant le service devant etre active avant l' affectation des canaux de trafic, les canaux de trafic vent affectes et des messages vent echanges pour une connexion de service entre elles meme si la station MS ne peut pas reprendre l' instance de service pour le service. Par consequent, des messages de signalisation et un trafic inutiles continuent d'etre generes jusqu'a ce que le service s'acheve et les stations MS et BS occupent les canaux de trafic affectes jusqu'a la confirmation de l'indisponibilite de l' activation de service. Il en resulte un gaspillage des ressources radio et la production d'un temps de retard inutile jusqu'a la Since the station BS does not make known to the station MS the identifier SR ID identifying the service to be activated before the assignment of the traffic channels, the affected wind traffic channels and the wind exchanged messages for a service connection between them even if the station MS cannot resume the service instance for the service. Therefore, unnecessary signaling messages and traffic continue to be generated until the service ends and MS and BS stations occupy the affected traffic channels until confirmation of the unavailability of the service activation. This results in a waste of radio resources and the production of an unnecessary delay time until the
fin du service.end of service.
Un objet de l 'invention est done de procurer un procede pour determiner si l'un de plusieurs services de donnees peut etre active dans un etat dormant dans un It is therefore an object of the invention to provide a method for determining whether one of several data services can be active in a dormant state in a
systeme de communications de donnees en paquets. packet data communications system.
Un autre objet de l 'invention est de procurer un procede pour faire cesser un service indisponible, reduisant ainsi le gaspillage des ressources radio dans un Another object of the invention is to provide a method for terminating an unavailable service, thereby reducing the waste of radio resources in a
systeme de communications de donnees en paquets sans fil. Wireless packet data communications system.
Un autre objet de l' invention est de procurer un procede pour faire cesser rapidement un service indisponible avec un effet minimal sur un systeme de Another object of the invention is to provide a method for rapidly stopping an unavailable service with minimal effect on a communication system.
communications de donnees en paquets sans fil. Wireless packet data communications.
Les objets ci-dessus ainsi que d'autres objets vent realises par un procede pour determiner si l'un de plusieurs services de donnees fourni d'une station de base BS a une station mobile MS peut etre reconnecte dans un etat dormant, ou des instances de services vent maintenues pour les services de donnees sans que des canaux de trafic ne soient connectes dans un systeme de communications de donnees par paquets sans fil. La station BS transmet a la station MS un radio-message contenant un identificateur SR ID identifiant un service de donnees devant etre active parmi les services de donnees. La station MS determine alors si l' instance du service indique par l'identificateur SR ID est disponible. Si l' instance de service niest pas disponible, la station MS transmet un message de reponse The above objects as well as other objects are made by a method to determine whether one of several data services provided from a base station BS to a mobile station MS can be reconnected in a dormant state, or Service instances are maintained for data services without traffic channels being connected in a wireless packet data communications system. The station BS transmits to the station MS a radio message containing an identifier SR ID identifying a data service to be active among the data services. The station MS then determines whether the service instance indicated by the identifier SR ID is available. If the service instance is not available, the MS station transmits a response message
indiquant le rejet du service a la station BS. indicating the rejection of service at the BS station.
L' invention sera decrite plus en detail en regard des dessins annexes a titre d'exemples nullement limitatifs et sur lesquels: la figure 1 est un diagramme illustrant un flux de messages de signalisation pour amorcer un service de donnees en paquets normalement apres un passage d'un etat dormant a un etat actif dans un systeme AMRC 2000 auquel l 'invention s' applique; la figure 2 est un diagramme illustrant le flux de messages de signalisation classique pour faire cesser un service loreque le service ne peut pas etre active dans un etat dormant dans le systeme AMRC 2000; The invention will be described in more detail with reference to the accompanying drawings by way of nonlimiting examples and in which: FIG. 1 is a diagram illustrating a flow of signaling messages for initiating a packet data service normally after a passage of a dormant state to an active state in a CDMA 2000 system to which the invention applies; FIG. 2 is a diagram illustrating the flow of conventional signaling messages for stopping a service when the service cannot be activated in a dormant state in the CDMA 2000 system;
la figure 3 est un organigramme illustrant le fonc- Figure 3 is a flowchart illustrating the function
tionnement d'une station de base BS en correspondence avec les flux de signaux illustres sur les figures 1 et 2; la figure 4 est un organigramme illustrant le fon^c tionnement d'une station mobile MS en correspondence avec les flux de signaux illustres sur les figures 1 et 2; la figure 5 illustre la structure d'un radiomessage classique; la figure 6 illustre le format d'un champ SERVICE_OPTION dans la radiomessagerie; la figure 7 illustre un exemple d' affectation de numeros d'options de services; la figure 8 illustre une structure d'un radiomessage de reponse classique; la figure 9 est un diagramme illustrant un flux de messages de signalisation pour faire cesser un service si le service ne peut pas etre active dans l'etat dormant selon la presente invention; la figure 10 illustre la structure d'un radiomessage comprenant en outre un champ SR_ID selon une forme de realisation de la presente invention; la figure 11 illustre un exemple de numeros d' options de services indiquant des identificateurs SR ID selon une autre forme de realisation de l 'invention; la figure 12 illustre une affectation de numeros d' options de services pour representer des identificateurs SR ID selon la seconde forme de realisation de ['invention; operation of a base station BS in correspondence with the signal flows illustrated in FIGS. 1 and 2; FIG. 4 is a flowchart illustrating the operation of a mobile station MS in correspondence with the signal flows illustrated in FIGS. 1 and 2; FIG. 5 illustrates the structure of a conventional paging; FIG. 6 illustrates the format of a SERVICE_OPTION field in the paging; FIG. 7 illustrates an example of assignment of service option numbers; FIG. 8 illustrates a structure of a conventional response paging; FIG. 9 is a diagram illustrating a flow of signaling messages for stopping a service if the service cannot be activated in the dormant state according to the present invention; FIG. 10 illustrates the structure of a paging message further comprising an SR_ID field according to an embodiment of the present invention; FIG. 11 illustrates an example of service option numbers indicating SR IDs according to another embodiment of the invention; Figure 12 illustrates an assignment of service option numbers to represent SR IDs according to the second embodiment of the invention;
la figure 13 est un organigramme illustrant le fonc- Figure 13 is a flowchart illustrating the function
tionnement de la station BS en correspondence avec le flux de signaux represente sur la figure 9; et la figure 14 est un organigramme illustrant le fonc tionnement de la station MS en correspondence avec le flux operation of the station BS in correspondence with the signal flow represented in FIG. 9; and FIG. 14 is a flowchart illustrating the operation of the station MS in correspondence with the flow
de signaux illustre sur la figure 9. signal shown in Figure 9.
Dans la description suivante, on ne decrira pas en In the following description, we will not describe in
detail des fonctions ou des modes de realisation bien detail of functions or embodiments well
connus pour ne pas obscurcir l 'invention pas des details inutiles. En particulier, les details specifiques tels que la structure d'un radiomessage ou de numeros d' options de services indiquant des types de services vent donnes pour permettre une comprehension globale et complete de ['invention. Les specialistes de la technique comprendront done que ['invention peut etre mise en uvre sans eux ou en known not to obscure the invention not unnecessary details. In particular, specific details such as the structure of a pager or service option numbers indicating types of services given to allow a comprehensive and complete understanding of the invention. Those skilled in the art will therefore understand that the invention can be practiced without them or in
leur apportant certaines modifications. making certain changes to them.
L' invention propose un procede pour determiner si l'un de plusieurs services dans un etat dormant- peut etre reconnecte dans un systeme de communications de donnees en paquets sans fil. Plus particulierement, pour activer le service dans l'etat dormant, une station BS transmet un message initial contenant un identificateur SR ID identifiant le service a une station MS. Avant de decrire la decision portent sur la disponibilite de la reconnexion du service, on decrira d'abord les operations effectuees par les stations BS et MS pour procurer un service de donnees en paquets dans un systeme AMRC 2000 classique. La station MS est connectee a un nud ou node de service de donnees en paquets (PDSN pour "Packet Data Service Node") par une connexion sans fil avec la station sS. Le node PDSN a pour but de connecter un reseau de communications mobiles a un reseau de communications par paquets tel que l'Internet, et il gere des instances de services entre la The invention provides a method for determining whether one of several services in a dormant state can be reconnected in a wireless packet data communications system. More particularly, to activate the service in the dormant state, a station BS transmits an initial message containing an identifier SR ID identifying the service to a station MS. Before describing the decision on the availability of service reconnection, we will first describe the operations performed by BS and MS stations to provide a packet data service in a conventional CDMA 2000 system. The MS station is connected to a packet data service node (PDSN) via a wireless connection with the sS station. The purpose of the PDSN node is to connect a mobile communications network to a packet communications network such as the Internet, and it manages service instances between the
station MS et divers autres points d'extremite. MS station and various other end points.
La figure l est un diagramme illustrant un flux de messages de signalisation pour amorcer normalement un service de donnees en paquets apres le passage d'un etat dormant a un etat actif dans un systeme AMRC 2000 auquel l 'invention siapplique. Plusieurs services continus entre une station BS et une station MS vent dans ltetat dormant FIG. 1 is a diagram illustrating a flow of signaling messages for normally initiating a packet data service after the transition from a dormant state to an active state in a CDMA 2000 system to which the invention applies. Several continuous services between a BS station and an MS station are in the sleeping state
et la station MS conserve des instances pour les services. and the station MS keeps instances for the services.
En reference a la figure l, a la suite de la genera- Referring to Figure l, following the genera-
tion d'un paquet pour un service particulier dans un etat dormant lO, la station BS transmet un radiomessage a la station MS sur un canal de radiomessagerie pour activer le service dans une etape lOl. Le radiomessage contient un tion of a packet for a particular service in a dormant state 10, the station BS transmits a paging message to the station MS on a paging channel to activate the service in a step lOl. The message contains a
numero d'option de service indiquant le type du service. service option number indicating the type of service.
Les types de services vent classes en un appel vocal utilisant divers codages vocaux, un appel de donnees supportant diverges cadences de donnees et un appel d'essai The types of services are classified into a voice call using various voice codings, a data call supporting different data rates and a test call.
qui depend du mode de realisation du systeme. which depends on the embodiment of the system.
Dans une etape 102, la station MS transmet un radio- In a step 102, the station MS transmits a radio-
message de reponse a la station BS en reponse au radiomessage. Le radiomessage de reponse contient un numero 2s d'option de service indiquant un service devant etre active lorsque le service est dans l'etat dormant. Le radiomessage est destine ici a la meme utilisation qu'une connexion de service initiale. La station BS affecte des canaux de trafic d'aller et de retour. La station BS transmet ensuite a la station MS un message d' affectation de canaux de trafic contenant l' information d'affectation de canaux de trafic de l'etape 103 et des donnees nulles sur le canal de response message to BS station in response to paging. The reply pager contains a service option number 2s indicating a service to be active when the service is in the dormant state. The paging here is intended for the same use as an initial service connection. The BS station assigns back and forth traffic channels. The station BS then transmits to the station MS a traffic channel assignment message containing the traffic channel assignment information of step 103 and null data on the traffic channel.
trafic aller dans ltetape 104.traffic go to step 104.
A la reception du message d' affectation de canaux de trafic, la station MS etablit les canaux de trafic aller et retour, verifie la reception du trafic aller (c'est-a-dire les donnees nulles) et transmet un preambule sur le canal de trafic retour a la station BS dans une etape 105. Dans Upon receipt of the traffic channel assignment message, the MS station establishes the outward and return traffic channels, verifies the reception of the outbound traffic (i.e. null data) and transmits a preamble on the channel of traffic back to the BS station in a step 105. In
une etape 106, la station BS transmet un ordre d'acquitte- a step 106, the station BS transmits an acknowledgment order
ment BS a la station MS. Ainsi, les canaux de trafic aller et retour vent totalement etablis et les stations BS et MS BS to MS station. Thus, the traffic channels back and forth are fully established and the stations BS and MS
passent dans un etat actif 20.go into an active state 20.
Pour reconnecter le service, la station BS transmet un message de connexion de service contenant un identificateur SR ID identifiant le service a la station MS dans une etape lo 107. La station MS determine alors si une instance pour le service est disponible. Si elle est disponible, la station MS transmet un message d'achevement de connexion de service a la station BS dans une etape 108. Ainsi, le service de donnees en paquets est demarre et des paquets pour le service vent echanges entre les stations BS et MS, comme To reconnect the service, the station BS transmits a service connection message containing an identifier SR ID identifying the service to the station MS in a step lo 107. The station MS then determines whether an instance for the service is available. If available, the station MS transmits a service connection completion message to the station BS in step 108. Thus, the packet data service is started and packets for the service are exchanged between the stations BS and MS, like
indique par la reference numerique 30. indicated by the numerical reference 30.
Si la station BS determine que des parametres de service doivent etre renegocies apres le passage a l'etat actif 20, elle transmet un message de demande de service contenant de nouveaux parametres de service a la station MS If the station BS determines that service parameters must be renegotiated after the transition to the active state 20, it transmits a service request message containing new service parameters to the station MS
avant la transmission du message de connexion de service. before transmitting the service connection message.
Etant donne que le message de demande de service comprend l'identificateur SR ID, la station MS peut determiner si l' instance de service est disponible par l'identificateur SR ID. Si le service est disponible, la station MS transmet un message de reponse de service a la station BS et attend la reception du message de connexion de service pour la Since the service request message includes the identifier SR ID, the station MS can determine whether the service instance is available by the identifier SR ID. If the service is available, the station MS transmits a service response message to the station BS and waits for the reception of the service connection message for the
reconnexion du service.reconnection of the service.
Un indicateur SR ID est une valeur a 3 bits indiquant une instance de service pour un service particulier. Si l'indicateur SR ID est 0, il indique une signalisation. Si l'indicateur SR ID est 7, il indique un service nul. Par consequent, un indicateur SR ID est positionne a une valeur non utilisee entre 1 et 6, pour une instance de service, qui est generee a chaque fois qu'un service est connecte An SR ID flag is a 3-bit value indicating a service instance for a particular service. If the SR ID indicator is 0, it indicates a signal. If the SR ID indicator is 7, it indicates zero service. Therefore, an SR ID flag is set to an unused value between 1 and 6, for a service instance, which is generated each time a service is connected
par une connexion sans fil.by wireless connection.
L' instance de service est un processus pour gerer toutes les informations demandees pour permettre l' execution d'un service, c'est-a- dire une information de configuration liee au service telle qu'un numero d'option s de service, un numero d'option de multiplex (MUX), une information de protocole de liaison radio (RLP pour 'Radio The service instance is a process for managing all the information requested to allow the execution of a service, that is to say configuration information linked to the service such as a service option number, a multiplex option number (MUX), radio link protocol information (RLP for 'Radio
Link Protocol") et une table de correspondence logique- Link Protocol ") and a logical correspondence table-
physique (LPM pour "Logical-to-Physical Mapping"). Lorsque le service est totalement libere, l' instance de service est supprimee et son identificateur SR ID est disponible pour toute autre instance de service. L'identificateur SR ID est inclus dans l'en-tete d'une unite de datagramme de paquets (PDU pour "Packet Datagram Unit") a des fins dindication du service d'un paquet transmis entre les stations BS et MS. Par contre, si l' instance de service correspondent a l'identificateur SR ID n'est pas disponible, la station MS effectue une operation illustree sur la figure 2, considerant que le service ne peut pas etre reconnecte. La figure 2 est un diagramme illustrant un flux de messages de signalisation classique pour faire cesser le service lorsque le service ne peut pas etre reconnecte dans l'etat dormant dans le systeme AMRC 2000. Les etapes 101 a 106 vent executees de la meme maniere que celles decrites en reference a la figure 1 et elles ne seront done pas redecrites. En reference a la figure 2, loreque la station MS determine que l' instance de service correspondent a l'identificateur SR ID n'est pas disponible dans une etape 110, elle retransmet un ordre de rejet a la station BS dans une etape 111. La station BS transmet alors un ordre de liberation a la station MS et libere les canaux de trafic deja affectes dans une etape 112. La station MS transmet egalement un ordre de liberation a la station BS et supprime l' instance de service, rendant l'identificateur SR ID disponible pour une instance de service differente dans physical (LPM for "Logical-to-Physical Mapping"). When the service is fully released, the service instance is deleted and its SR ID is available to any other service instance. The SR ID is included in the header of a packet datagram unit (PDU) for the purpose of indicating the service of a packet transmitted between BS and MS stations. On the other hand, if the service instance corresponding to the identifier SR ID is not available, the station MS performs an operation illustrated in FIG. 2, considering that the service cannot be reconnected. FIG. 2 is a diagram illustrating a flow of conventional signaling messages for stopping the service when the service cannot be reconnected in the dormant state in the CDMA 2000 system. Steps 101 to 106 can be executed in the same way as those described with reference to Figure 1 and they will therefore not be re-described. With reference to FIG. 2, when the station MS determines that the service instance corresponding to the identifier SR ID is not available in a step 110, it retransmits a rejection order to the station BS in a step 111. The station BS then transmits a release order to the station MS and releases the traffic channels already affected in a step 112. The station MS also transmits a release order to the station BS and deletes the service instance, rendering the SR ID available for a different service instance in
une etape 113.a step 113.
Les operations effectuees par les stations BS et MS en correspondence avec les flux de signaux illustres sur les figures 1 et 2 vent representees respectivement sur les The operations carried out by the stations BS and MS in correspondence with the signal flows illustrated in FIGS. 1 and 2 are shown respectively on the
figures 3 et 4.Figures 3 and 4.
En reference a la figure 3, a la generation d'un nouveau paquet pour un service particulier dans l'etat dormant dans une etape 200, la station BS transmet le radiomessage contenant le numero d'option du service a la station MS sur un canal de radiomessagerie dans une etape 201. La station MS determine alors a partir du numero d'option de service si le service peut etre reconnecte dans une etape 202. Si le numero d'option de service est ''OxO000'', la station MS determine que la reconnexion du service n'est pas disponible. Etant donne que la disponibilite du service a deja ete verifiee a la connexion initiale du service, le message de reponse au radiomessage possede le numero d' option de service etabli dans le radiomessage. Par consequent, loreque le service est active dans l'etat dormant, la station BS determine tonjours, d'apres la reponse au radiomessage, que le service est disponible. Dans une etape 203, la station BS affecte des canaux de trafic pour le service et transmet des donnees de trafic nulles a la station MS sur le canal de trafic aller. La station BS transmet ensuite le message d' affectation de canaux a la station MS dans une etape 204. A la reception d'un preambule provenant de la station MS sur le canal de trafic retour dans une etape 205, la station BS transmet ltordre d'acquittement BS a la station MS dans une etape 206. Dans une etape 207, la station BS transmet a la station MS le message de connexion de service contenant l'identificateur SR ID indiquant le service devant etre connecte et attend la reception d'une reponse en provenance de la station MS. A la reception du message d'achevement de connexion de service en provenance de la station MS dans une etape 208, la station BS commence a echanger des paquets avec la station MS, considerant que la connexion de service est disponible. Autrement, si la station BS ne rec,oit pas le message d'achevement de connexion de service dans l'etape 208, elle attend la reception de l'ordre de rejet en provenance de la station MS dans une etape 209. A la reception de l'ordre de rej et, la station BS transmet l'ordre de liberation a la station MS dans une etape 210 et re,coit l'ordre de liberation en provenance de la station MS dans une etape 211. La station BS libere alors les canaux With reference to FIG. 3, to the generation of a new packet for a particular service in the dormant state in a step 200, the station BS transmits the paging message containing the option number of the service to the station MS on a channel paging in step 201. The MS station then determines from the service option number if the service can be reconnected in step 202. If the service option number is "OxO000", the MS station determines that reconnection of the service is not available. Since the availability of the service has already been checked at the initial connection of the service, the paging response message has the service option number set in the paging. Consequently, when the service is active in the dormant state, the BS station always determines, from the response to the paging message, that the service is available. In a step 203, the station BS allocates traffic channels for the service and transmits zero traffic data to the station MS on the forward traffic channel. The BS station then transmits the channel assignment message to the MS station in a step 204. On receipt of a preamble from the MS station on the return traffic channel in a step 205, the BS station transmits the order of acknowledgment BS to the station MS in a step 206. In a step 207, the station BS transmits to the station MS the service connection message containing the identifier SR ID indicating the service to be connected and awaits receipt of a response from the MS station. Upon receipt of the service connection completion message from the station MS in a step 208, the station BS begins to exchange packets with the station MS, considering that the service connection is available. Otherwise, if the station BS does not receive the service connection completion message in step 208, it waits for the reception of the rejection order originating from the station MS in a step 209. On reception of the replay order, the station BS transmits the release order to the station MS in a step 210 and receives the release order from the station MS in a step 211. The station BS then releases canals
de trafic et fait cesser le service. traffic and stops the service.
En reference a la figure 4, la station MS, surveillant le canal de radiomessage dans une etape 300, re,coit le radiomessage en provenance de la station BS dans une etape 301. Si une adresse destinataire incluse dans le radiomessage est differente de celle de la station MS dans une etape 302, la station MS revient a l'etape 300 et surveille le canal de radiomessagerie. Si elles vent identiques, la station MS determine d'apres le numero d' option de service inclus dans le radiomessage si le type du service devant etre reconnecte peut etre supporte. Etant donne que la station MS a determine de supporter le type de service, loreque le service est reconnecte dans l'etat dormant, le service est connecte initialement. Par consequent, la station MS determine touj ours que le type de service peut etre supporte. La station MS transmet ensuite le message de reponse au radiomessage a la station BS dans une etape 303. La reponse au radiomessage contient le numero d' option de service etabli dans le radiomessage pour indiquer la disponibilite du type de service. A la reception du message d' affectation de canaux dans une etape 304, la station MS etablit des canaux de trafic aller et retour conformement a l' information d' affectation incluse With reference to FIG. 4, the station MS, monitoring the paging channel in a step 300, receives the paging message from the station BS in a step 301. If a recipient address included in the paging is different from that of at the MS station in step 302, the MS station returns to step 300 and monitors the paging channel. If they are identical, the MS station determines from the service option number included in the paging message if the type of service to be reconnected can be supported. Since the MS station has determined to support the type of service, when the service is reconnected in the dormant state, the service is initially connected. Therefore, the MS station always determines that the type of service can be supported. The station MS then transmits the paging response message to the station BS in a step 303. The paging response contains the service option number established in the paging to indicate the availability of the type of service. Upon receipt of the channel assignment message in a step 304, the MS station establishes back and forth traffic channels in accordance with the included assignment information.
dans le message d'affectation de canaux dans une etape 305. in the channel assignment message in a step 305.
La station MS recoit des donnees de trafic nulles sur le canal de trafic aller, confirmant ainsi la mise en place normale du canal de trafic aller dans une etape 306. La station MS continue la transmission du preambule, considerant que les canaux de trafic aller et retour n'ont pas ete etablis, jusqu'a ce que cette station MS recoive l'ordre d'acquittement BS en provenance de la station BS The MS station receives zero traffic data on the outbound traffic channel, thus confirming the normal installation of the outbound traffic channel in step 306. The MS station continues the transmission of the preamble, considering that the outbound and outbound traffic channels return have not been established, until this MS station receives the BS acknowledgment order from the BS station
dans une etape 308.in a step 308.
A la reception du message de connexion de service en provenance de la station BS dans une etape 309, la station MS determine si l' instance pour le service identifie par un identificateur SR ID inclus dans le message de connexion de On receipt of the service connection message from the station BS in a step 309, the station MS determines whether the instance for the service is identified by an identifier SR ID included in the service connection message.
service parmi plusieurs services en continu est disponible. service among several continuous services is available.
Si l' instance de service est disponible, la station MS transmet le message d'achevement de connexion de service a la station BS dans une etape 311 et commence a echanger des paquets avec la station BS. Autrement, si l' instance de service n'est pas disponible dans l'etape 310, la station MS transmet l'ordre de rejet a la station BS dans une etape 312. A la reception de l'ordre de liberation dans une etape 313, la station MS transmet ltordre de liberation a la station BS dans une etape 314. La station MS libere ensuite If the service instance is available, the station MS transmits the service connection completion message to the station BS in a step 311 and begins to exchange packets with the station BS. Otherwise, if the service instance is not available in step 310, the station MS transmits the rejection order to the station BS in a step 312. On receipt of the release order in a step 313 , the station MS transmits the release order to the station BS in a step 314. The station MS then releases
les canaux de trafic et arrete l' instance de service. traffic channels and stops the service instance.
Les figures 5 a 8 illustrent les structures du radio 2s message et du message de reponse aux radiomessages classiques utilises pour amorcer un service de donnees en paquets dans l'etat dormant. En particulier, la figure 5 illustre un format du radiomessage classique. Comme illustre sur la figure 5, le radiomessage classique contient un champ SERVICE_ OPTION a 16 bits ayant un numero FIGS. 5 to 8 illustrate the structures of the 2s message radio and of the response message to conventional paging messages used to initiate a packet data service in the dormant state. In particular, Figure 5 illustrates a format of conventional paging. As illustrated in Figure 5, the classic paging contains a 16-bit SERVICE_ OPTION field with a number
d'option de service.service option.
La figure 6 illustre le format du champ SERVICE_ OPTION. En reference a la figure 6, 1 bit est affecte a un indicateur de propriete, 3 bits vent utilises pour une revision d'option de service et les 12 autres bits indiquent un numero d'option de service de base. Les 15 bits, non compris l'indicateur de proprietaire, vent Figure 6 illustrates the format of the SERVICE_ OPTION field. Referring to Figure 6, 1 bit is assigned to a property flag, 3 bits are used for a service option review and the other 12 bits indicate a basic service option number. The 15 bits, not including the owner indicator, wind
utilises pour indiquer un numero doption de service. used to indicate a service option number.
La figure 7 illustre un exemple de numero d'option de service. Des types de services comprenant un appel vocal a 8 kbps, un appel de retour en boucle, etc. vent representes par l'utilisation de numeros d' options de services. Sur la Figure 7 shows an example of a service option number. Types of services including 8 kbps voice call, loop back call, etc. represented by the use of service option numbers. On the
figure 7, 4105 a 32767 vent reserves. figure 7, 4105 to 32767 wind reserves.
La figure 8 illustre un format du message de reponse au radiomessage classique. En reference a la figure 8, la reponse au radiomessage classique contient un champ FIG. 8 illustrates a format of the response message to conventional paging. Referring to Figure 8, the response to conventional paging contains a field
SERVICE_OPTION indiquant un numero d' option de service. SERVICE_OPTION indicating a service option number.
Comme decrit precedemment, lors de la generation d'un paquet pour un service dans l'etat dormant, la station BS transmet le radiomessage a la station MS pour demander une reconnexion du service. Etant donne que le radiomessage est configure pour une connexion de service initiale, il contient uniquement un numero d'option de service indiquant le type du service devant etre connecte. Avec plusieurs services connectes par une seule connexion sans fil, chaque service est identifie par son identificateur SR ID. Dans la presente invention, le radiomessage est done configure de facon a comprendre en out re un identificateur SR ID afin de determiner rapidement la disponibilite d'un service particulier. La figure 9 est un diagramme illustrant un flux de messages de signalisation pour l'achevement d'un service loreque le service ne peut pas etre reconnecte dans un etat dormant conformement a l 'invention. En reference a la figure 9, lors de la generation d'un nouveau paquet pour un service particulier dans l'etat dormant 10, la station BS transmet a la station MS un radiomessage contenant un numero d'option de service indiquant le type du service et un identificateur SR ID identifiant le service dans une etape 401. Le format du radiomessage sera decrit en detail ci-apres. La station MS determine, en reference a l'identificateur SR ID, si une instance pour le service est disponible. Si l'insLance (e service est disponibIe, la GLaLion MS LcameL la sLaLion ES une rdponse au radiomeGGage conLenaoL l'idenLificaLeur SR I ou le numro d'opLion de service. [a sLaLion MS atfecLe enuiLe des canaux de Lrafic eL amorce le service de donnes en paqueLG en renAgocianL des param@Lres de service 1orsque cela esL . neCeGsalre. En varianLe, Gi l'insLance de service n'eL pas disponible, la sLaLion MS LranGmeL la sLaLion BS le meGsage de rAponse au radiomeGsage indiquanL le rejeL de la connexion du service, par exeple "0x0000", o bien l'ordre de rejeL danG une ALape 402, eL lib@re le sevice comme indigud par la rfrence num@rique 40. LanL donna que les canaux de Lrafic nionL pas ALd encote aftecLdy, laG n GLaLioDG BS eL MS o'onL pas besoin d'Achanger les ordres de libcaLion. La figure 10 illuLre le formaL du radiomeGGage corenanL un champ d'iformaLion d'idenLificaLeur SR_IO Gelon une forme de ralisaLion de l'invenLion. En mparaisOn avec le radiom<GGage gn@ral illoGLr sur la figure 5, le radiomeGGage selon 1iinvenLion comprend un champ SR_ID 3 bits indiquanL un idenLificaLeur SR ID en As described above, when generating a packet for a service in the dormant state, the station BS transmits the message to the station MS to request a reconnection of the service. Since the paging is configured for an initial service connection, it only contains a service option number indicating the type of service to be connected. With multiple services connected by a single wireless connection, each service is identified by its SR ID. In the present invention, the paging is therefore configured so as to further comprise an SR ID in order to quickly determine the availability of a particular service. FIG. 9 is a diagram illustrating a flow of signaling messages for the completion of a service when the service cannot be reconnected in a dormant state in accordance with the invention. With reference to FIG. 9, when generating a new packet for a particular service in the dormant state 10, the station BS transmits to the station MS a paging message containing a service option number indicating the type of service and an identifier SR ID identifying the service in a step 401. The format of the paging will be described in detail below. The station MS determines, with reference to the identifier SR ID, if an instance for the service is available. If the insLance (e service is available, GLaLion MS LcameL la sLeLion ES a response to radiomeGGage conLenaoL the identifier SR I or the number of opLion of service. [A sLaLion MS atfecLE enuiLe channels of Lrafic eL starts the service in paqueLG in renAgocianL of the service parameters @ when it is neGeGsalre.Variant, Gi the service insLance is not available, the MS LranGmeL sSLion BS sLion the response message to the radiomeGsage indicated the reJeL of the connection of the service, for example "0x0000", where the order of rejeL danG an ALape 402, eL frees the service as indigudé by the numerical reference 40 @ LanL gave that the channels of Lrafic nionL not ALd encoded aftecLdy, LAG n GLaLioDG BS eL MS where there is no need to exchange libcaLion orders Figure 10 illustrates the form of corenanL radiomeGGage a field of uniformaLion of identIfication SR_IO Gelon a form of achievement of invenLion. mparaisOn with the radiom <GGage gn @ ral illoGLr on figure 5, l e radiomeGGage according to 1iinvenLion includes a 3-bit SR_ID field indicating a SR ID idenLificaL
P1UG du chap SERVICE_OPTION 16 biL.P1UG from chap SERVICE_OPTION 16 biL.
HormiG la reconnexion de service dans l'6LaL dormant, le radiomeGGage esL AgalemenL uLiliGA pour une connexion d'appel iniLiale. Par conGquenL, l'addiLion d'un champ d'informaLion au radiomeGGage provogue une charge inuLile lorG de la connexion d'appel iniLiale. On peuL done eoviager, en LanL quiauLre forme de ralisaLion, que le radiomeGGage GoiL configurd de fagon comprendre un idenLificaLeur SR ID sanG modification guelcongue du radiomeGGage claGsigue en affecLanL cerLainG deG num@cos d'opLionG de services en rAserve comme illuGLr sur la Aside from the reconnection of service in the dormant station, the radiomeGage is also used for an initial call connection. By conGquenL, the addition of an informaLion field to the radiomeGGage causes an unnecessary load during the initial call connection. We can therefore say, in Lan which in the form of realization, that the radiomeGGage GoiL configured so as to include an idenLificaLeur SR ID sanG modification gelcongue of the radiomeGGage claGsigue in affect a cerLainG deG num @ cos on opLionG of services in reserve as illuR
figure 7 de faon repr6senLer des idenLificaLeur SR ID. figure 7 in order to represent SR ID identifiers.
La figure 11 illuGLre le formaL du champ SERVICE_OPTION pour fournir un idenLificaLeur SR I selon la seconde forme de realisation de ['invention. Le premier bit du champ SERVICE_OPTION a 16 bits est tonj ours 0. Les 2e a 13e bits vent tous des 1 pour indiquer que le champ represente un identificateur SR ID, et les 3 autres bits vent affectes de facon a indiquer l'identificateur SR ID Figure 11 illustrates the form of the SERVICE_OPTION field to provide an SR I idenLificaLer according to the second embodiment of the invention. The first bit of the SERVICE_OPTION field at 16 bits is tonj ours 0. The 2nd to 13th bits are all 1 to indicate that the field represents an SR ID, and the other 3 bits are assigned to indicate the SR ID
d'une instance de service a l'etat dormant. a service instance in the dormant state.
La figure 12 illustre une affectation de numeros d'options de services pour representer des identificateurs Figure 12 illustrates an assignment of service option numbers to represent identifiers
SR ID selon la seconde forme de realisation de ['invention. SR ID according to the second embodiment of the invention.
En reference a la figure 12, des numeros d'options de services Ox7FF8 (32 760) a Ox7FFF (32 767) vent affectes pour representer des identificateurs SR ID 0 a 7. Par exemple, si un ordinateur portable est connecte a la station MS et si la station mobile MS et liordinateur portable effectue les services VOD et FTP, respectivement, par une connexion unique sans fil, la station MS exploite deux instances de services pour le service VOD et le service FTP. Bien que les instances de services possedent le meme numero d'option de service indiquant un service de donnees en paquets a haute vitesse, par exemple 33, elles vent connectees a des serveurs correspondents par l'intermediaire d'une BS en utilisant des connexions separees, habituellement des connexions PPP et ont leurs Referring to Figure 12, Ox7FF8 (32,760) to Ox7FFF (32,767) service option numbers are assigned to represent SR IDs 0 through 7. For example, if a laptop is connected to the MS station and if the mobile station MS and the laptop perform the VOD and FTP services, respectively, by a single wireless connection, the station MS operates two service instances for the VOD service and the FTP service. Although service instances have the same service option number indicating high speed packet data service, for example 33, they are connected to corresponding servers through a BS using separate connections , usually PPP connections and have their
propres identificateurs SR ID specifiques. own specific SR IDs.
2s Si aucun paquet nest genere pour les deux services pendant un temps predetermine, la station MS libere les canaux de trafic radio et passe dans l'etat dormant, conservant les instances de services. A la generation d'un paquet pour le service FTP dans l'etat dormant, la station BS demande a la station MS de reprendre le service FTP par 2s If no packet is generated for the two services for a predetermined time, the MS station releases the radio traffic channels and goes into the dormant state, keeping the service instances. When generating a packet for the FTP service in the dormant state, the station BS requests the station MS to resume the FTP service by
l'identificateur SR ID identifiant le service FTP. the SR ID identifying the FTP service.
L'identificateur SR ID est inclus dans un radiomessage SR ID is included in a pager
initial transmis a la station MS dans l'etat dormant. initial transmitted to the MS station in the dormant state.
Si l'utilisateur a deconnecte la station MS de l'ordi nateur portable, la station MS ne peut plus utiliser l' instance de service FTP. Par consequent, la station MS transmet un message de reponse au radiomessage indiquant le rejet de la connexion du service ou un ordre de rejet a la If the user has disconnected the MS station from the laptop, the MS station can no longer use the FTP service instance. Consequently, the MS station transmits a response message to the paging indicating the rejection of the service connection or a rejection order to the
station BS, et la station BS arrete alors le service FTP. BS station, and the BS station then stops the FTP service.
En variante, l' instance de service peut ne pas etre disponible lorequ'une minuterie effective etablie a un temps predetermine expire. A la reception d'un radiomessage demandant une reconnexion de l' instance de service, la station MS transmet une reponse au radiomessage indiquant un rejet de la connexion de service ou un ordre de relet a Alternatively, the service instance may not be available when an effective timer established at a predetermined time expires. On receipt of a paging request to reconnect the service instance, the MS station transmits a response to the paging indicating a rejection of the service connection or a re-order to
la station BS. La station BS arrete alors le service. BS station. The BS station then stops the service.
Les figures 13 et 14 vent des organigrammes illustrant les operations effectuees par les stations BS et MS en correspondence avec le flux de signaux represente sur la figure 9. En reference a la figure 13, lors de la generation d'un nouveau paquet pour un service dans l'etat dormant a l'etape 500, la station BS transmet a la station MS le radiomessagecontenant l'identificateur SR ID du Figures 13 and 14 show flowcharts illustrating the operations performed by the BS and MS stations in correspondence with the signal flow shown in Figure 9. With reference to Figure 13, when generating a new packet for a service in the dormant state in step 500, the station BS transmits to the station MS the paging message containing the identifier SR ID of the
service sur un canal de radiomessagerie dans une etape 501. service on a paging channel in a step 501.
L'identificateur SR ID est etabli dans un champ d' information procure separement, ou bien il est etabli a un numero d'option de service predetermine dans un champ SERVICE_OPTION. A la reception du message de reponse au radiomessage provenant de la station MS dans une etape 502, la station BS determine a partir d'un numero d'option de service inclus dans la reponse au radiomessage si le service peut etre reconnecte, c'est-adire si une instance pour le service est disponible dans une etape 503. Si le numero d'option de service est "0x0000" indiquant l'indisponibilite du service, la station BS arrete le service. Si le numero d'option de service est d'une toute autre valeur, la station BS affecte des trafics de canaux aller et retour pour le service et commence a transmettre des donnees de trafic nulles sur le canal aller dans une etape 504. Dans une etape 505, la station BS transmet le message d' affectation de canaux contenant une information d'affectation de canaux de trafic a la station MS. A la reception d'un preambule sur le canal de trafic retour dans une etape 506, la station BS transmet l'ordre d'acquitte ment BS a la station MS, indiquant l'achevement de The SR ID is set in a separate information field, or it is set to a predetermined service option number in a SERVICE_OPTION field. Upon receipt of the paging response message from the MS station in step 502, the BS station determines from a service option number included in the paging response whether the service can be reconnected, that is, -adire if an instance for the service is available in a step 503. If the service option number is "0x0000" indicating the unavailability of the service, the station BS stops the service. If the service option number is of a completely different value, the BS station assigns back and forth channel traffic for the service and starts transmitting zero traffic data on the go channel in step 504. In a step 505, the station BS transmits the channel assignment message containing traffic channel assignment information to the station MS. On receipt of a preamble on the return traffic channel in a step 506, the station BS transmits the order of acknowledgment BS to the station MS, indicating the completion of
l 'affectation des canaux de trafic dans une etape 507. the assignment of traffic channels in a step 507.
La station BS transmet le message de connexion de service a la station MS dans une etape 508. Loreque la station BS recoit un message d'achevement de connexion de service en provenance de la station MS dans une etape 509, The station BS transmits the service connection message to the station MS in a step 508. When the station BS receives a service connection completion message coming from the station MS in a step 509,
elle commence a echanger des paquets avec la station MS. it begins to exchange packets with the MS station.
En reference a la figure 14, la station MS surveille le canal de radiomessagerie dans l'etat dormant dans une etape 600. A la reception du radiomessage contenant une adresse destinataire et l'identificateur SR ID d'un service devant etre connecte dans une etape 601, la station MS determine si son adresse est identique a l'adresse destinataire recue dans une etape 602. Si elles vent differentes, la station MS revient a l'etape 600 pour continuer a surveiller le canal de radiomessagerie. Si les adresses vent identiques, la station MS determine a partir d'un numero d'option de service, c'est-a-dire l'identifica teur SR ID inclus dans le radiomessage, si le service peut etre reconnecte, c'est-a-dire si une instance pour le service est encore disponible dans une etape 603. Si le service n'est pas disponible, la station MS passe a une With reference to FIG. 14, the station MS monitors the paging channel in the dormant state in a step 600. On reception of the paging message containing a recipient address and the identifier SR ID of a service to be connected in a step 601, the station MS determines if its address is identical to the destination address received in a step 602. If they are different, the station MS returns to step 600 to continue monitoring the paging channel. If the addresses are identical, the MS station determines from a service option number, i.e. the identifier SR ID included in the message, if the service can be reconnected, this is ie if an instance for the service is still available in a step 603. If the service is not available, the station MS goes to a
etape 612.step 612.
Autrement, si le service est disponible dans l'etape 603, la station MS transmet un message de reponse au radiomessage a la station BS dans une etape 604. La reponse au radiomessage contient le numero d'option de service (c'est-a-dire l'identificateur SR ID) inclus dans le radiomessage pour indiquer la disponibilite de la Otherwise, if the service is available in step 603, the MS station transmits a paging response message to the BS station in step 604. The paging response contains the service option number (that is, - say the SR ID) included in the paging message to indicate the availability of the
reconnexion du service.reconnection of the service.
A la reception du message d'affectation de canaux en provenance de la station BS dans une etape 605, la station MS etablit des canaux de trafic aller et retour conformement a l' information d' affectation incluse dans le message d' affectation de canaux dans une etape 606. Apres confirmation de l'etablissement normal du canal aller par la reception de donnees de trafic nulles sur le canal de trafic aller a une etape 607, la station MS commence a transmettre un preambule sur le canal de trafic retour dans Upon receipt of the channel assignment message from the station BS in a step 605, the station MS establishes back and forth traffic channels in accordance with the assignment information included in the channel assignment message in a step 606. After confirmation of the normal establishment of the forward channel by the reception of zero traffic data on the forward traffic channel at a step 607, the station MS begins to transmit a preamble on the return traffic channel in
une etape 608. Si la station MS recoit l'ordre d'acquitte- a step 608. If the station MS receives the acknowledgment order
ment BS en provenance de la station BS dans une etape 609, elle determine que les canaux de trafic aller et retour ont ment BS from BS station in step 609, it determines that the back and forth traffic channels have
ete etablis avec succes.was successfully established.
A la reception du message de connexion de service en provenance de la station BS dans une etape 610, la station MS transmet le message d'achevement de connexion de service a la station BS dans une etape 611 et commence a echanger Upon receipt of the service connection message from the station BS in step 610, the station MS transmits the service connection completion message to the station BS in step 611 and begins to exchange
des paquets avec la station BS.packets with the BS station.
Comme indique ci-dessus, si l' instance de service n'est pas disponible dans l'etape 603, la station MS transmet la reponse aux radiomessages contenant un numero d'option de service etabli a "0x0000" a la station BS, indiquant l'indisponibilite du service dans l'etape 612. On peut en outre envisager, en tent qu'autre forme de realisation, que si l' instance de service est indisponible, la station MS transmet un ordre de rejet en reponse au radiomessage. La station MS arrete alors l' instance de service. Conformement a l' invention telle que decrite ci dessus, une instance de service pour un service particulier est arrete des qu'il est determine que le service ne peut pas etre reconnecte dans un etat dormant. Par consequent, on reduit la consommation des ressources radio et on ameliore les performances du systeme. En outre, le radiomessage general est encore utilise sans modification quelconque, simplement en affectant certains des numeros d'options de services pour representer des identificateurs SR ID qui identifient des instances de services correspondantes. Il en resulte que l' invention peut etre As indicated above, if the service instance is not available in step 603, the station MS transmits the response to paging messages containing a service option number set to "0x0000" at the station BS, indicating the unavailability of the service in step 612. It can also be envisaged, while trying another embodiment, that if the service instance is unavailable, the station MS transmits a rejection order in response to the paging. The station MS then stops the service instance. In accordance with the invention as described above, a service instance for a particular service is stopped as soon as it is determined that the service cannot be reconnected in a dormant state. Consequently, the consumption of radio resources is reduced and the performance of the system is improved. In addition, general paging is still used without modification, simply by assigning some of the service option numbers to represent SR IDs that identify corresponding service instances. It follows that the invention can be
appliquee a des systemes existants.applied to existing systems.
I1 va de sol que de nombreuses modifications peuvent etre apportees au procede decrit et represente sane sortir It goes without saying that many modifications can be made to the process described and represented without going out.
du cadre de ['invention.of the scope of the invention.
Claims (14)
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| GB2389012B (en) | 2004-12-08 |
| CN1297078C (en) | 2007-01-24 |
| KR20030081835A (en) | 2003-10-22 |
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| KR100594140B1 (en) | 2006-06-28 |
| WO2003090379A1 (en) | 2003-10-30 |
| FR2838910B1 (en) | 2009-11-20 |
| US20030193964A1 (en) | 2003-10-16 |
| JP2005520452A (en) | 2005-07-07 |
| JP4038482B2 (en) | 2008-01-23 |
| AU2003225378A1 (en) | 2003-11-03 |
| EP1353480A1 (en) | 2003-10-15 |
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| CA2449927C (en) | 2007-09-18 |
| AU2003225378B2 (en) | 2006-02-09 |
| US7519015B2 (en) | 2009-04-14 |
| CA2449927A1 (en) | 2003-10-30 |
| BRPI0304520B1 (en) | 2016-06-21 |
| RU2003136092A (en) | 2005-05-27 |
| CN1524358A (en) | 2004-08-25 |
| GB0308400D0 (en) | 2003-05-21 |
| BR0304520A (en) | 2004-07-27 |
| RU2263411C2 (en) | 2005-10-27 |
| DE60305565T2 (en) | 2006-11-02 |
| GB2389012A (en) | 2003-11-26 |
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